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HashMap in Java

HashMap in Java

88.6K viewsJul 18, 2023

intellipaat.com

Java program to count the occurrence of each character in a string using Hashmap - GeeksforGeeks

Java program to count the occurrence of each character in a …

geeksforgeeks.org

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 34/200: LeetCode 904 — Fruit Into Baskets 🍎🍊 You are visiting a row of fruit trees represented by an integer array. You can pick only 2 types of fruits (since you have 2 baskets). Your goal: collect the maximum number of consecutive fruits before you’re forced to stop. ✅ Brute Force: Try all subarrays → O(n²) ❌ ✅ Optimal (Sliding Window + HashMap): O(n) ✅ Approach: - Use a window to store at most

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want sol…

16.4K views4 months ago

Instagramcodewith_govind

Sushant Kumbhar on Instagram: "🔍 Why HashMap Is Not Thread-Safe 1️⃣ No synchronization mechanism Methods like put() and get() are not synchronized. Multiple threads can update the map at the same time. 2️⃣ Unsafe resize (rehashing) operation During resize, the bucket array is restructured. Concurrent updates can corrupt bucket links. 3️⃣ Non-atomic operations put() involves multiple steps (hashing, indexing, insertion). Thread interleaving breaks operation consistency. ⚠️ Problems in Multi-Thre

Sushant Kumbhar on Instagram: "🔍 Why HashMap Is Not Thread-Safe …

17.3K views1 month ago

Instagramcodewith_sushant

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 57/200: LeetCode 3541 — Find Most Frequent Vowel and Consonant 🔤 Given a string, find the most frequent vowel and the most frequent consonant. ⚡ Solve it efficiently using frequency counting / HashMap in O(n). Follow @codewith_govind for 200 days of DSA 🚀 #Day57DSA #LeetCode3541 #VowelsAndConsonants #StringProblems #HashMap #FrequencyCount #DSA #ProblemSolving #CodingInterview #LeetCode #CodeWithG

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want sol…

7.5K views1 month ago

Instagramcodewith_govind

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want solutions in C++, Java & Python Day 64/200: LeetCode 13 — Roman to Integer 🏛️ Convert a Roman numeral into its corresponding integer value. ⚡ Solve it efficiently using character mapping and traversal logic in O(n). Follow @codewith_govind for 200 days of DSA 🚀 #Day64DSA #LeetCode13 #RomanToInteger #StringProblems #HashMap #DSA #ProblemSolving #CodingInterview #LeetCode #CodeWithGovind #200DaysDSA #LearnDSA #Cplusplus #Java #Python

Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want sol…

24.2K views3 weeks ago

Instagramcodewith_govind

HashMap in Java | How HashMap Works in Java | Internal Implementation of HashMap

HashMap in Java | How HashMap Works in Java | Internal Implement…

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